The RL5 is designed to be a compact, cost effective, reliable combined internal and external light for lift rafts. It has features to make fixing to the raft easy, and includes a single point of activation for both internal and external lights. Once activated, the internal and external lights are individually controllable.

The external light is designed to produce a minimum of 4.3cd in all directions for 12 hours. The internal light is designed to produce a minimum of 0.5cd in all directions for 12 hours. The battery pack has a maximum shelf life of five years from date of manufacture.